replicant-frameworks_native/opengl/libs/EGL/egl_display.cpp
Mathias Agopian 5b287a6ea8 eglTerminate() now actually frees up all active egl objects
as specified by the EGL specification, terminated objects's
handles become invalid, the objects themselves are destroyed
when they're not current to some thread.

Change-Id: Id3a4a5736a5bbc3926a9ae8385d43772edb88eeb
2011-05-16 19:03:33 -07:00

277 lines
8.8 KiB
C++

/*
** Copyright 2007, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include "egl_display.h"
#include "egl_object.h"
#include "egl_tls.h"
#include "egl_impl.h"
#include "Loader.h"
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
extern void initEglTraceLevel();
extern void setGLHooksThreadSpecific(gl_hooks_t const *value);
static int cmp_configs(const void* a, const void *b) {
const egl_config_t& c0 = *(egl_config_t const *)a;
const egl_config_t& c1 = *(egl_config_t const *)b;
return c0<c1 ? -1 : (c1<c0 ? 1 : 0);
}
// ----------------------------------------------------------------------------
egl_display_t egl_display_t::sDisplay[NUM_DISPLAYS];
egl_display_t::egl_display_t() :
magic('_dpy'), numTotalConfigs(0), configs(0), refs(0) {
}
egl_display_t::~egl_display_t() {
magic = 0;
}
egl_display_t* egl_display_t::get(EGLDisplay dpy) {
uintptr_t index = uintptr_t(dpy)-1U;
return (index >= NUM_DISPLAYS) ? NULL : &sDisplay[index];
}
void egl_display_t::addObject(egl_object_t* object) {
Mutex::Autolock _l(lock);
objects.add(object);
}
void egl_display_t::removeObject(egl_object_t* object) {
Mutex::Autolock _l(lock);
objects.remove(object);
}
bool egl_display_t::getObject(egl_object_t* object) {
Mutex::Autolock _l(lock);
if (objects.indexOf(object) >= 0) {
object->incRef();
return true;
}
return false;
}
EGLDisplay egl_display_t::getFromNativeDisplay(EGLNativeDisplayType disp) {
if (uintptr_t(disp) >= NUM_DISPLAYS)
return NULL;
return sDisplay[uintptr_t(disp)].getDisplay(disp);
}
EGLDisplay egl_display_t::getDisplay(EGLNativeDisplayType display) {
Mutex::Autolock _l(lock);
// get our driver loader
Loader& loader(Loader::getInstance());
for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && disp[i].dpy == EGL_NO_DISPLAY) {
EGLDisplay dpy = cnx->egl.eglGetDisplay(display);
disp[i].dpy = dpy;
if (dpy == EGL_NO_DISPLAY) {
loader.close(cnx->dso);
cnx->dso = NULL;
}
}
}
return EGLDisplay(uintptr_t(display) + 1U);
}
EGLBoolean egl_display_t::initialize(EGLint *major, EGLint *minor) {
Mutex::Autolock _l(lock);
if (refs > 0) {
if (major != NULL)
*major = VERSION_MAJOR;
if (minor != NULL)
*minor = VERSION_MINOR;
refs++;
return EGL_TRUE;
}
#if EGL_TRACE
// Called both at early_init time and at this time. (Early_init is pre-zygote, so
// the information from that call may be stale.)
initEglTraceLevel();
#endif
setGLHooksThreadSpecific(&gHooksNoContext);
// initialize each EGL and
// build our own extension string first, based on the extension we know
// and the extension supported by our client implementation
for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
cnx->major = -1;
cnx->minor = -1;
if (!cnx->dso)
continue;
#if defined(ADRENO130)
#warning "Adreno-130 eglInitialize() workaround"
/*
* The ADRENO 130 driver returns a different EGLDisplay each time
* eglGetDisplay() is called, but also makes the EGLDisplay invalid
* after eglTerminate() has been called, so that eglInitialize()
* cannot be called again. Therefore, we need to make sure to call
* eglGetDisplay() before calling eglInitialize();
*/
if (i == IMPL_HARDWARE) {
disp[i].dpy =
cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY);
}
#endif
EGLDisplay idpy = disp[i].dpy;
if (cnx->egl.eglInitialize(idpy, &cnx->major, &cnx->minor)) {
//LOGD("initialized %d dpy=%p, ver=%d.%d, cnx=%p",
// i, idpy, cnx->major, cnx->minor, cnx);
// display is now initialized
disp[i].state = egl_display_t::INITIALIZED;
// get the query-strings for this display for each implementation
disp[i].queryString.vendor = cnx->egl.eglQueryString(idpy,
EGL_VENDOR);
disp[i].queryString.version = cnx->egl.eglQueryString(idpy,
EGL_VERSION);
disp[i].queryString.extensions = cnx->egl.eglQueryString(idpy,
EGL_EXTENSIONS);
disp[i].queryString.clientApi = cnx->egl.eglQueryString(idpy,
EGL_CLIENT_APIS);
} else {
LOGW("%d: eglInitialize(%p) failed (%s)", i, idpy,
egl_tls_t::egl_strerror(cnx->egl.eglGetError()));
}
}
EGLBoolean res = EGL_FALSE;
for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->major >= 0 && cnx->minor >= 0) {
EGLint n;
if (cnx->egl.eglGetConfigs(disp[i].dpy, 0, 0, &n)) {
disp[i].config = (EGLConfig*) malloc(sizeof(EGLConfig) * n);
if (disp[i].config) {
if (cnx->egl.eglGetConfigs(disp[i].dpy, disp[i].config, n,
&disp[i].numConfigs)) {
numTotalConfigs += n;
res = EGL_TRUE;
}
}
}
}
}
if (res == EGL_TRUE) {
configs = new egl_config_t[numTotalConfigs];
for (int i = 0, k = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->major >= 0 && cnx->minor >= 0) {
for (int j = 0; j < disp[i].numConfigs; j++) {
configs[k].impl = i;
configs[k].config = disp[i].config[j];
configs[k].configId = k + 1; // CONFIG_ID start at 1
// store the implementation's CONFIG_ID
cnx->egl.eglGetConfigAttrib(disp[i].dpy, disp[i].config[j],
EGL_CONFIG_ID, &configs[k].implConfigId);
k++;
}
}
}
// sort our configurations so we can do binary-searches
qsort(configs, numTotalConfigs, sizeof(egl_config_t), cmp_configs);
refs++;
if (major != NULL)
*major = VERSION_MAJOR;
if (minor != NULL)
*minor = VERSION_MINOR;
return EGL_TRUE;
}
return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
EGLBoolean egl_display_t::terminate() {
Mutex::Autolock _l(lock);
if (refs == 0) {
return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
// this is specific to Android, display termination is ref-counted.
if (refs > 1) {
refs--;
return EGL_TRUE;
}
EGLBoolean res = EGL_FALSE;
for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && disp[i].state == egl_display_t::INITIALIZED) {
if (cnx->egl.eglTerminate(disp[i].dpy) == EGL_FALSE) {
LOGW("%d: eglTerminate(%p) failed (%s)", i, disp[i].dpy,
egl_tls_t::egl_strerror(cnx->egl.eglGetError()));
}
// REVISIT: it's unclear what to do if eglTerminate() fails
free(disp[i].config);
disp[i].numConfigs = 0;
disp[i].config = 0;
disp[i].state = egl_display_t::TERMINATED;
res = EGL_TRUE;
}
}
// Mark all objects remaining in the list as terminated, unless
// there are no reference to them, it which case, we're free to
// delete them.
size_t count = objects.size();
LOGW_IF(count, "eglTerminate() called w/ %d objects remaining", count);
for (size_t i=0 ; i<count ; i++) {
egl_object_t* o = objects.itemAt(i);
o->destroy();
}
// this marks all object handles are "terminated"
objects.clear();
refs--;
numTotalConfigs = 0;
delete[] configs;
return res;
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------